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-rw-r--r--plugins/extraction/ExtrOcamlZBigInt.v2
1 files changed, 2 insertions, 0 deletions
diff --git a/plugins/extraction/ExtrOcamlZBigInt.v b/plugins/extraction/ExtrOcamlZBigInt.v
index c9e8eac0c..66f188c84 100644
--- a/plugins/extraction/ExtrOcamlZBigInt.v
+++ b/plugins/extraction/ExtrOcamlZBigInt.v
@@ -8,6 +8,8 @@
(** Extraction of [positive], [N] and [Z] into Ocaml's [big_int] *)
+Require Coq.extraction.Extraction.
+
Require Import ZArith NArith.
Require Import ExtrOcamlBasic.